Earth boring apparatus



May 2, 1944. A. J. PARRlsH EARTH BORING APPARATUS 6 Sheets-Sheet 1 FiledOct. 21, 1940 Zara @@yzpff@ i Wamnw May 2, 1944. A. J. PARRlsH EARTHBORING APPARATUS Filed' Oct. 2l, 1940 6 Sheets-Sheet 2 May 2 1944- A. J.PARRISH V2,348,024

EARTH BORING APPARATUS May 2, 1944. A. J. PARRlsH EARTH BORING APPARATUSFiled Oct. 21, 1940 6 Sheets-Sheet lil' May 2, 1944 A. J. PARRlsH2,348,024

EARTH BORING APPARATUS Filed Oct. 21. 1940 6 Sheets-Sheet 5 May 2, 1944A. J. PARRISH 2,348,024

. EARTH BORING APPARATUS Filed O :l',.A 2l, 1940 6 Sheets-Sheet 6 4 fffi ff oooooo ooooo 'fz f /aj/ i/ 942 WZ i NIH Sum@ Patented May 2, 1944UNITED sTAres miam vori-"Ici:

2,348,024 EARTH BORING APPARATUS E-Alan Jay Parrish, Paris, Ill.

Application October 2l, 1940, Serial No. 362,139

9 claims. (el. Z55-21) vThis invention relates to portable earth boringapparatus vand more particularly to kapparatus for effecting rapid andaccurate earth borings at controlled angles in respect to a mobilesupport.

One of the objects of the invention is the provision of an apparatus formaking accurate earth borings atco-ntrolled angles from a transportvehicle for demolition work, for borings along highways and for generalboring operation accessible to the machine.

Another object of the invention is the provision of a boring machine andsupporting base structure providing vertical swinging adjustments todesired angles for drilling operations.

A further object of the invention is the provision of a boring machineand cooperating base assembly carrying said machine in a retractedloaded position or in a forward pivotal drilling position.

A further object isthe provision of a controlled angle drillingapparatus having self-adjusting driving means.

Further objects include the provision of manually operable means formoving the machine on its base and an improved adjustable motor mountingmeans.

In carrying out these objects, and others which will become apparentfrom the description of the invention, there is provided apparatus whichwill be better understood from the following detail-ed descriptionhaving reference to the accompanying drawings wherein.

Fig. 1 is a view in side elevation of an embodiment vof the inventionwith the drilling unit shown by full and dotted'lines in dierentpositions of adjustment.

Fig. 2 isa view in side elevation of the apparatus of Fig. 1, with theboring unit in retracted or loaded position.

Fig. 3 is a broken end view showing Ain plan the machine mounting andbase.

Figs. 4 and 5 are sectional views, respectively, taken on lines 4-4 and5-5 of Fig. 3.

Fig. 6 is a rear broken persepective oi the machine and-its mounting inthe dottedline position oi Fig. 7.

Fig. 7 is a detail longitudinal section showing mounting details of themachine base and subbase, and Fig. 8 is a perspective View of the deitachable mounting plate.

Fig. 9 is a central vertical section of the cable winding device ofFigs. l and 2.

l is a transverse end view partly in section illustrating the boringunit and base 55.

assembly details, and Fig. 1l is a vertical section taken on line II-IIof Fig. 10.

Figs. 12 and 13 are enlarged fragmentary views in side and endelevation, respectively, illustrating motor base and mounting details.

Fig. 14 is a view on liner Ill-I4 of Fig. 12, showing the top plan ofthe motor support, and Fig. l5 is a transverse section on line I5I5showing roller and king bolt details.

Fig. 16 is a detail sectional view taken on line lt-I of Fig. 12.

Referring to the drawings, there is illustrated in Figs. 1 and 2 thereofin particular, earth boring apparatus for controlled angle earth boringsy in an arc extending over 90 from a substantially 2, havingnxed theretoin overhanging relationship at one side or another, an inclined boringmachine supporting base 3. I This base, for economy of construction andstrength, consists of the'parallel :formed` standard channel sections :iand 5 having inwardly facing anges and depending portions overlying thesides of the vehicle support. Portions of the channels overlying thevehicle support have weldedA thereto cross tie plate S extendinglaterally beyond the channels. these extensions being apertured toreceive the fastening bolts 1. The upper ends of the channels are eachclosed by a welded plate 8 supporting aligned pivot bearings 9 for themachine supporting removable pivotal pin i I8 and the channels areapertured in alignment to receive the removable fastening pin I I.Horizontal rearwardly extending parallel angles I2 and inclined anglesI3v have their meeting ends tted together and Welded, these ends beingmaintained in spaced parallel relationship by the underlying tie plateI4 with lateral extensions for fastening bolts l5. The angle members aresecured by Welding to the channel members. .inclined angles I3 haveinwardly facing flanges which, at a predetermined distance from thepivot bearings, are provided with seating depressions I5 to receiveWheels on the earth boring unit mounting means presently to bedescribed.

The earth boring unit il is movably mounted on base 3 to occupy aretracted or loaded positionas shown in Figure 2, or an advanced orpivoted position supported by pin Ill, as shown in Figure l. The boringunit is of the typedescribed and claimed in my `copending applica- Theboring unit includes a frame 25 andbase 21 of welded structural members.Thebase isof less width than the distance between inwardly directedflanges of the base to permit fr'eelon-v bottom sides of the boxstructure. Sides of the box member of the sub-base are apertured inalignment at spaced positions to receive the removable supporting pivotpin l0, removable pins 41 and 48, and shaft 49 carrying on oppositesides of the box structure flanged wheels 50 and 5|, so spaced as toengage and ride on inclined angle members I3 of the base 3 when themachine is swung on supporting pivot pin l0. A series ofverticallyaligned apertures 52 through the web portions of the channelmembers 45 and 46 are adapted to register with cen- -tral apertures inthe base tie channel 2| and base in'such manner as to allow a lateralswinggitudinal movement of the u'nit in theftrackway. Horizontal flanges28 welded to the base are slidi,

ably received in the trackway for adjstably supporting the. unit, the.fits between the flanges being such as to provide free but accuratelongitudinal movement of the unit 'along the base. A boring toolV driveshaft 29 extends longitudinally of the unit base driven by chainsprocket 39 and carries a combined chuck and flexible coupling 3| havingdetachable driving connection with auger I8. The boring tool shaft haspower transmission connection vwith flexible drive shaft 32 throughreduction gearing including a series of chains and sprockets. Thegearing is such as to provide a largegear reduction ratio fortransmission of substantial power from the flexible drive shaft.

Sliding movement of the boring unit longitudinallyof the base isaccomplished only by manually operated feed means. Movement of theunitisproduced by rotating pinions 23 fixed to pinion shaft 33 carryingsprocket 34 fixed to the shaft and combined worm gear and clutch 35Vrotatably'mounted on the shaft but selectively engageable with clutchmember 35 through manually operable lever'means 31. Sprocket 34 isconnected through low ratio chain and sprocket Y connection to shafts 38and 39 adapted to receive hand wheel 4|), rotationof which'provides forrapid movementfof the unit along the base when the worm gearclutch isdisengaged. Shafts 38 and 39 are connected by gear reducing sprocketsand cooperating chain to provide two optional gear reductions usable indifferent positionsfof The feed mechanismis so sensitive and easilymanipulated and the unit is so accurately guided that an operatorr isenabled to accurately vfeel drilling conditions throughout a'drillingoperation. Y This is not possiblewith machines having automatic feedarrangements.

The boring machine hereinbefore described is mounted on base 3 forretractible and swinging'movement by a sub-base 44. This base consists'of a box 'structure of interiltted standard channel members 4 5 and 46welded together with their flanges in overlapped position and with webportions of the "channels 'forming'top and ing. or pivotal movement ofthe machine on bolt 55. Clamping plate 54 overlies cross-tie channel 2|Yand is provided at its ends with depending ears 53 which areaperturedand Straddle the channel memberbox frame to receive the removable pinsy41 and 48. By this arrangement the machine is securely mounted on' thesub-base but is capable of swinging movement in a direction at rightangle to that provided by the pivotal support of the sub-base on pivotpin |0. The forward end ofthe machine is supported on the sub-base byarcuate angle member 51 having its'flange portions `connected by weldingto the sub-base box frame, vfiller piece 58 forming the supportingwelded connection between the horizontal .flange portion and the .baseframe. The ends of the angle'memberare provided with a series of spacedapertures 59 adapted to receive manually releasable spring pressed latchbolts 63 fixed to the sides of the machine base channels. These latchbolts serve to x the machine` in a position of adjustment when swungabout the bolt 55 and wear plate 53 accommodates base channel 2| in theswinging movement. The arcuate angle member has pivotally mountedthereon on its under or rear. side spaced supports 6| positioned toslidably engage opposite sides ofthe base 3. These supports are providedwith a series of spaced apertures adapted to receive the removable pinfor angular adjustment of the machine when tilted on pivot pin IB. Inthe arrangement described, the machine can be angularly adjusted in twodirections about pivot pin I9 and bolt 55; Wheels 5U and 5| are sospaced with respect to pivot pin I0 that when the machine is swungdownwardlyl at its rear end to engage base 3 the wheels enterdepressions IG in the inclined channels. With the machine in thisposition, pivot pin l0 can be. removed to; allow the machine tomove-rearwardly of the base on wheels 50 and 5| to the retracted orloaded position shown in Fig.l 2. Conversely, when the machine isadvanced upwardly of the inclined base to a position where the wheelsengage the depression it is accurately positioned to permit passage ofthe pivot pin l0 through the bearings and ,sub-base. chine with respecttothe sub-base support iis readily accomplished by movement of theboring unit in its base.

Means controlling swinging movement of the machine on pivot pin I0consists of cable 62 hav-` ing one end fixed 'to the sub-base at 63 fromwhence it passes downwardly around sheave S4 rotatably mounted onbase '3and rearwardly over sheave 65 at the rear e'nd of the sub-base and thendownwardly around a winding drum 66 on shaft 61 journaled in parallelspaced up- Balancing of the maright channel members 68 and 69. The shaft61 also carries toothed Wheel TU and chain sprocket H driven by 'chain12 trained over a driving sprocket 13 on shaftl carrying at one end handwheel 15. Rotation of the toothed wheel in one directionl is normallypreven-tedby the manually operable pivoted dog 'I6 on shaft 11 journaledin bearings' xed to the angesl of the channels.l The dog is so designedand positioned that its weight tends to swing it downwardly intoengagement with the periphery of the toothed wheel.

The structural arrangement described provides for adjustment 'of theboring unit with its base and sub-base to a retracted or loaded positionas .illustrated in Fig. 2 or to a forward or controlled angle pivotalposition on. pivot pin I as shown in Figs. 1 and 6 in particular. Whenthe boring machine is in the position shownv in F'ig. 6 or in thedotted.line position of Fig. 1, Vit' occupies a position permittingsubstantially perpendicular boring operations or those provided for bythe lateral swinging movement of the machine on the king bolt 55 and thexation of the machine in a position of adjustment by the latch bolts 60detachably engaged in the receiving apertures of member 51.

Controlled angle adjustment on pivot pin I9 at right angles to theswinging adjustment permitted by bolt V55,A and from the verticalposition shown in Fig. 6, is eiected by the removal of pin I` and bywinding the cable 62 on the drum 66 by operation of hand wheel 15. Thetension applied to cable 62 serves to swing the machine downwardly fromthe vertical and angular positions shown in Fig. l to an inclinedposition wherein the wheels 5l)v and 5l on the subbase engage in thedepressions I6 in the inclined upper angles of base 3. The machine canbe i-xed at controlled angles irl-this swinging movement by restoringthe locking pin Il by passing it through selected ones of apertures 18in the arms 6I and aligned holes in. the base. This provides positioningof the machine for controlled angle boring operations from a positioninclined above the horizontal to a. substantially vertical position asillustrated in Figs. l and 2. and in an intersecting arc provided byvlateral swinging adjustment on the boit 55 and locking engagement of thelatch bolts Ell.

Extremely accurate progressive earth borings may be made in any selectedpositioning of the machine by the power driven boring unit Hand augerI8, under Asensitive manual control afforded by the feeding meanspreviously described. The auger f8 is preferably of the self-clearingtype described and claimed in my copending ap,- plication Serial No.288,237, filed Aug. 3, 1939, having a detachable cutter head 19 and oneor more auger sections 8u with spaced spiral nights' having reamingcutters at their forward end. However, the auger structure forms no,part of the novelty in this invention except as a4 neces.- sary elementand other augers may obviously be employed. At the commencement of adrilling operation the boring unit is in a retracted position-in itsguiding base, from which position it is advanced as drilling conditions.permit by operation of the hand wheel 43 until it becomes necessary toadd 'another anger section. Successive auger sections may be `added bydisconnecting the boring unit from already inserted tool sect-ions andfeedingitrearwardly of theA base to receive an interposed tool section,after' which the progressivedrilling may be resumed.'

l chine.

Tool sections are withdrawn in areverse of these operations.

When the boring machine occupies the positionl with wheels 5i) and 5|engaged in the dcpressions I6 of the base, the pivot pin Ill can bewithdrawn or inserted. Thus, when the machine is swung downwardly withthe wheels in engagement with the base, the pivot pin can be withdrawnto release the machine for rearward movement down the inclined base tothe retracted or loaded position shown in Fig. 2. Conversely, when themachine is advanced from its retracted position to the point where thewheels engage the base depressions inthe sub-base it is in the properposition for insertion of pin Hl to provide pivotal movementof theVmachine in controlled angle drilling operations. The controlV cable 62and its cooperating sheaves may be so arranged that forward movement ofthe' machine from its retracted position can be accomplished to acertain point by tension applied toY the cable.

The structural arrangement is such that the power driven boring unitmust have considerable latitude of movement in its swinging andVreciprocating positions. In order to permit this movement, the boringunit is driven by an automatically adjustable independent motoror powerplant 8l pivotally and adjustably supported in elevated position on themobile support 2. The illustrated embodiment consists ofthe motor 8|,-clutchV and gear transmission 82 and ilexible drive shaft 32, the latteraording power transmission between the motor and the boring ma- Themotor is pivotally supported on a wheeled base 83 consisting of rearwheels 8l! rotatably mounted on the base consisting of spaced channelmembers 85, deck 86 welded thereto, and the `front welded inverted tiemember 81. Tie member 81 carriesat its central point the rotatablymounted yoke 88 which in turn rotatably supports front Wheel 89. Theyoke 88 has fixed thereto the second yoke 99 detachably associated withhandle 9|. The deck or top 8B is centrally apertured to receive king pin92 and carries anti-friction rollers 93 mounted in bearings on the underside oi the deck. Peripheral portions of the rollers extend throughapertures 95 in the deck so as to lie slightly above the deck to providecontact bearing support for a base plate 96 on the motor, said baseplate being centrally apertured to accommodate king pin 92.

The motor and its pivotally associated Wheeled base, by which the motorcan be transported when separated fromthe machine assembly, isdetachably mounted in elevated position with respect to base 2 on theadjustably mounted supporting frame .91 consisting of parallellongitudinally extending channels t8, upright angle members 99, andangle tie members Ili, having inwardly facing flanges to receive theVwheeled base which is detachably connected therewith by the pins orbolts I Gl. The elevated supporting frame is receivable tor longitudinaladjustment between the spaced parallel angles |02 ixed to the movablesupport. The angles are provided with a line of apertures to receiveanchor pins |03 which pass through the angles and apertures vin thechannels 98f to fix the supporting frame in the :desired position ofadjustment. In this arrangement, the elevated pivotal support of themotor allows automatic swinging adjustment oi the motor andflexibleshait in all of the extensive movements of the boring machine.

In the described structural organizatiom'the boring machine unit andpower connections,are required tohave considerable latitude of movementto accommodate the swinging movement of the machine in intersectingplanes and its re.- ciprocating movement in the channel trackway. Themotor automatically. adjusts itself' angu.- larly in response tomovements of the boring machine for proper application of power throughthe flexible drive. The wheel base for the motor alfords means oftransportation when it is found necessary to dismountV the motor fromits structural organization supported'by the vehicle. The machine baseis illustrated in position at the rear side ofthe vehicle support. Itwill be obvious that this base can be shifted 90 in overlying relationto the adjacent side Vof the vehicle support.

The operation of the apparatus is as follows. The boring machine isnormally carried in the retracted or transporting position shown in Fig.2. With the positioning of the transport Vvehicle for a drillingoperation, the drilling machine'is forced upwardly along the inclinedsurface of the base until the wheels 50 and 5I engage in the basedepression. Forward .movement of the machine may be attained by tensionapplied'to the cable. Such forward movement by the cable ispossibleuntil the sheave at the end of theisubbase engages the undersideof the cable. When the machine is in the position with the wheelsengaged in the base depressions, it is in the exact position to bepinned to the front end of the base by passing the/pivot pin through thesub-base frame and thefbearingsron the base. In the pinned position'themachine and its sub-base can be swung downwardly from its positioninclined above the horizontal toa substantially vertical position foreiecting substantially perpendicular drilling operations. The machineautomatically adjustsfitseli to a perpendicular position by means of itspivotal support on the sub-basel It can be iixed in this or an adjustedangular position by the latch bolts. VThe machine may be furtheranchored against a transverse swingingv movement by xing the adjustablearms 6I to the base by the through pin I I. vAdjustment of the machinefordrilling operations in inclined positions above the horizontal isobtained by removing the locking pin l| and by swinging the machine andits sub-base by the manually operated cable winding mechanism. When adesired position of adjustment is reached, the pin Il is again passedthrough the selectedvapertures in the supporting arm and'that in thebase.l

' The boringunit is advanced or retracted in its base bythe manuallyloperated feed means previously described. Thisffeed means allows alsofor balancing the machine in adjustment operation.y When a boringoperation is completed; the machine *and its sub-base'ris swungdownwardly bythe cable tensioning means until the wheels againoengagethe depressions in the base. In this position, the pivot pin l0 can beremoved toy allow the machine and sub-base to be retracted downwardlyofthe inclined baseto the loaded Position i Y yThe structuralorganization provides for'controlled angle drilling alongthe highways,under existing structures and wherever points are ac#-V asgispagborngunt, provide a' largeiield of operations.

yWhile the invention has been describedin connection with the preferredembodiment thereof, itis to be understood that the words which have beenused are vwordsof description rather than of limitation, and thatpractice of theinvention within. the scope of the appended claims, maybe resorted to without departing fr qrn'thetrue scope and spirit oftheinvention in all its aspects.v

I claim: i

1. In combination with a mobile carrier having a substantiallyhorizontalfplatformsupport, a machine base xed to said support inoverhanging relation at one side thereof,l an earth boring machinecomprising a channel guide support and a boring unit connectedtherewith'for Y longitudinal movement in the channel support',

means movablebetweenia rear position on said base -and a forwardvpivotal position for supporting said machine on`said'base for .compoundpivotal movementfwith respect to' sai'd base, where; by said machine=can vbe adjustedv for angular drilling operations, means including amanually operable feed mechanism for reciprocating said 4 machine 'withrespect to said base in` drilling operations, and meansforfdrivingsaidmachine, said driving means being soy constructed and arranged as to beself adjustable in response to movements of the boring machine.

2. In combination with a self propelled vehicle having a substantially`horizontal support, an earth boring machine pivotally mounted on saidsupport at 'one' side thereof for vertical swinging adjustment inrelationr to the support, meansfor driving said earth boring machine,and means adjustably mounting said driving means in elevated positionwithv respect Vto ksaid support, said last mentioned means including apivotal connection ifor'automatic adjustment o'f said driving means`inresponse to movements of the boring machine. i A' V 3. In combinationwith' a vehiclehaving a substantially horizontal platform support, anearth boring machine, means for mounting the machine onsaid support atone side'thereof for ver.- tical swinging adjustment in relation to`said support, said means including a base iixed to said support land anintermediate base movably connected therewith means for driving saidmachine, and means pivotally mounting said driving means on said supportinv elevated position for automatic angular adjustment in, response tomovements of the boring machine.

4. In' earth boring apparatus of .the character l' described.af,horizontal supporting base, a mavangular adjustment, means for lockingsaid machine and frame in a desired position of adjustment, andmeanspivotally -mountedon a vertical axis for driving said machine, saiddriving means being self adjustingA in responseto movements of saidmachine. L. V

5., In earth boringapparatus o f Vthe character described,`asubstantially horizontal base support, an intermediateframe pivotallymounted for vertical swinging movement at one end of said support,adjustable 'means forlocking gether with the reciprocatingmovement of.the` 7 57 said vframe andf support in-ajdesuirel positionjof angularadjustment, an earth boring machine pivotally connected with said framefor swinging angular adjustment thereon transversely ofthe plane of saidvertical swinging movement, releasable means for locking said machineand frame in a desired position of adjustment, means for driving saidmachine, and means for pivotally supporting said driving means forangular adjustment in response to movements of the boring machine.

6. In earth boring apparatus of the character described, a substantiallyhorizontal base support, an intermediate frame pivotally mounted forvertical swinging movement on said support, adjustable means for lockingsaid frame in relation to said support in a desired position of angularadjustment, an earth boring machine pivotally connected with said framefor swinging angular adjustment thereon, releasable means for lockingsaid machine and frame in a desired position of adjustment, a manuallyoperated mechanism for effecting a vertical swinging motion of saidframe and earth boring machine on the base support from a substantiallyvertical position to a position upwardly inclined with respect to saidsupport, and driving means for said machine pivotally mounted to followmovements of the machine.

7. In combination with a vehicle support, a machine base fixed to saidsupport, said base having spaced parallel upwardly inclined membershaving aligned depressions therein spaced from the ends of the members,a machine supporting base frame having spaced wheels adapted swinging ofsaid base frame to effect an angular adjustment thereof with respect tothe machine base, and adjustable means for xing said base frame in thedesired position of adjustment.

8. In combination with a vehicle support, a machine base xed to saidsupport, said base having spaced parallel upwardly inclined membershaving aligned depressions therein spaced from the ends of the members,a machine supporting base frame having spaced wheels adapt- 'ed to rideonsaid inclined members, connecting means including a removable pivotpin for pivotally mounting said base frame for vertical yswingingmovement at one side of said machine base, said wheels and saiddepressions being equidistant from the pivot pin so as to engage whenthe wheels are swung downwardly to engage the base, manually operablemeans for effecting swinging of said base frame to eect an angularadjustment thereof with respect to the machine base, adjustable meansfor fixing said base frame in the desired position of adjustment, aboring machine pivotally connected with said base frame for lateralswinging adjustment with respect to the base frame, and releasable meanson said machine and base frame for anchoring the machine in the desiredposition of adjustment.

9. In combination with a mobile carrier having a substantiallyhorizontal platform support, a machine base fixed to said support havingan end thereof at one side of the support, an earth boring machinecomprising a channel support and a boring unit connected therewith forslidable longitudinal movement in the channel support, means supportingsaid boring machine on the machine base for pivotal movement at the endthereof, means for driving said machine, and means providing automaticangular adjustment of said driving means in response to movement of theboring machine.

ALAN JAY PARRISH.

